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Cards In This Set
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Ina single behicle with a fully charged air system, air pressure loss (after the initial drop and brake applied) should be less than....
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3 psi per minute
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With dual air systems, the air pressure should build...
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From 85 to 100 psi in 45 seconds
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A fully charged air system typically has psi.
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125
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To test the air leakage rate you should....
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Turn off the engine and release the service brake
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Fanning air brakes.....
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Decreases the air pressure
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The governor allows the air to start pumping again when it reaches the cut in level, or around
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100 psi
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The saftey valve in the air compressor tank is set to open at.....
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150 psi
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When testing air leakage rates for combination vehicles (before applying the brake pedal), air brake system should not lose air faster than....
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3 psi per minute
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The governor stops pumping air when it reaches the "cut out" level, or around
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125 psi
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Air loss in a straight truck or bus should not be more than with the engine off and the brakes released
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2 psi in one minute
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The driver must be able to see a warning that is given beofre air pressure in the service air tanks falls below:
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60 psi
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A straight truck or bus air brake system should not leak at a rate of more then PSI per minute with the engine off and the brake released.
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2 psi in one minute
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